Micro Inverters are attached to each panel in the system, usually underneath. They enable the solar panels to work independently of each other and are suitable for systems with panels on multiple roof sections.
Solar Micro Inverters (output power up 800VA)
Below is a block diagram of a Solar Micro Inverter where electromagnetic components are mainly PCB mounted. Electromagnetic components use ferrite cores to support switching frequencies of 100–200kHz.
Falco designs and produces various components for this application such as: High Frequency Transformers in the DC/AC Inverter Block to convert the DC voltage to AC voltage (typical switching frequency is 100–200kHz); Differential Mode Filters present in the DC/DC converter block; Power Line Communication Transformers to enable transmission of data over the grid; Auxiliary Transformers in the Controller Block to feed the microcontroller devices. Current Transformers are present on the output for the energy monitoring.
PRODUCTS
HF TRANSFORMER
P62W01
Features
- Power Rating = 700VA
- Switching Frequency = 100kHz
- Ferrite Core
- PTH PCB Mounting
- Litz Wire conductor (0.05mm strands)
- CT embedded on AC side
- EIS Class F (155°C)
DIFFERENTIAL MODE CHOKE
E09W01
Features
- Inductance: 2.2mH @@100kHz
- Leakage Inductance: 100uH @@100kHz
- DCR: 0.090 Ohm
- Impedance: 12.6 kOhm @@600kHz
- Ferrite Core
- PTH PCB Mounting
Power Line Communication Transformer
PQ2W01
Features
- Inductance = 100uH @@100kHz
- Leakage Inductance = 3uH @@100kHz
- Interwinding Capacitance = 50pF @@100kHz
- 5kV dielectric insulation
- Ferrite Core
- PTH PCB Mounting
Auxiliary Transformer
EP1W01
Features
- Power Rating = 25W
- Switching Frequency = 100kHz
- Ferrite Core
- SMT PCB Mounting
- EIS Class B (130°C)
- 3kV dielectric insulation
600 Amp Split Core Current Transformer
U80W01
Features
- Split core solution: plug-and-play ready for existing electrical wiring
- Dynamic current range: up to 600A, Class 1%
- Nominal System Voltage: up to 250Vac
- 6kV dielectric withstand voltage test
- Operating temperature: -40°C to +85°C
- UL2808 Certified with Service Entrance rating, Pollution Degree 3
Applications
- Ideal for consumption and current monitoring in residential or in harsh, industrial environments.
100 Amp Split Core Current Transformer
U20W01
Features
- 1% Class per IEC 61869-2
- Split core solution: plug-and-play ready for existing electrical wiring
- Dynamic current range: up to 100A
- Nominal System Voltage: up to 250Vac
- 3kV dielectric withstand voltage test
- Operating temperature: -40°C to +85°C
- CE Mark Certified Transformer
Applications
- Ideal for consumption and current monitoring in residential conditions with high accuracy and reduced spacings.
FALCO ELECTRONICS
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